Current Electricity Charging Discharging Of Capacitors Question 529
Question: Three bulbs of 40W, 60W and 100W are arranged in series with 220V. Which bulb has minimum resistance
[AFMC 2001]
Options:
A) 40W
B) 60W
C) 100W
D) Equal in all bulbs
Show Answer
Answer:
Correct Answer: C
Solution:
$ P=\frac{V^{2}}{R}\Rightarrow R\propto \frac{1}{P} $ So resistance of the 100W bulb will be minimum
BETA
